9911500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 22198176

約数和(自身を除く): 12286676

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 461, 500, 860, 922, 1075, 1844, 2150, 2305, 4300, 4610, 5375, 9220, 10750, 11525, 19823, 21500, 23050, 39646, 46100, 57625, 79292, 99115, 115250, 198230, 230500, 396460, 495575, 991150, 1982300, 2477875, 4955750, 9911500]

約数ペア:

[(1, 9911500), (2, 4955750), (4, 2477875), (5, 1982300), (10, 991150), (20, 495575), (25, 396460), (43, 230500), (50, 198230), (86, 115250), (100, 99115), (125, 79292), (172, 57625), (215, 46100), (250, 39646), (430, 23050), (461, 21500), (500, 19823), (860, 11525), (922, 10750), (1075, 9220), (1844, 5375), (2150, 4610), (2305, 4300)]